Personally I agree with chucks requirements, except my purpose would be different. I'd like to travel time as well as space, namely because I've always wondered what a dinosaur would taste like. See I imagine if I was immortal my motives would be even more screwed up then they are now. I may end like a character from hitch hikers guide to the galaxy and build a restaurant at the end of time.. To quote a certain Lord Tyrion "Death is final, where as life is full of possibilities."
To-morrow, and to-morrow, and to-morrow,
Creeps in this petty pace from day to day,
To the last syllable of recorded time;
And all our yesterdays have lighted fools
The way to dusty death. Out, out, brief candle!
Life's but a walking shadow, a poor player,
That struts and frets his hour upon the stage,
And then is heard no more. It is a tale
Told by an idiot, full of sound and fury,
Signifying nothing.
Creeps in this petty pace from day to day,
To the last syllable of recorded time;
And all our yesterdays have lighted fools
The way to dusty death. Out, out, brief candle!
Life's but a walking shadow, a poor player,
That struts and frets his hour upon the stage,
And then is heard no more. It is a tale
Told by an idiot, full of sound and fury,
Signifying nothing.